 This casual, irrational misbehavior in the face of extreme risk drove her interest in the complicated forces that influence how people act with regard to their health and health care.From 1979 to 1984, Gruman worked at the Greenwich House Counseling Center with substance abusers and their families.She implemented the employee health promotion program, Total Life Concept (TLC) at the national headquarters of AT&T, Communications between 1984 and 1986.